Why break with tradition

In the classic spirit of hack day, this email was sent by Mike Blakemore:

Screen grab of Mike's email Photograph: Jonathan Hyde/The Guardian

And you can immediately tell who has push notifications on their phones:

Devs go nuts for donuts. Photograph: Jonathan Hyde/The Guardian

3.57pm GMT

The inimitable Swells (Stephen Wells) is working hard on an interesting new feature aimed at our live blogging tools (as well as at least one other project). It is still early development but allows us to cross reference our own material in a really nice way.

James Gorrie, Patrick Hamann and Rob Berry are working on an interesting snippings feature that might allow readers to engage with our journalism in a really easy way. First sneak peeks look very interesting. Expecting a good demo tomorrow. No pressure chaps.

An intriguing sneak peek at what this particular team are working Photograph: Jonathan Hyde/The Guardian

2.21pm GMT

Cats or Dogs

To help Guardian Soulmates discover more about each other, Hans and Nicholas are adapting James Tauber's Cats or Dogs as a whimsical and fun dating game.

Gideon Goldberg, one of our super QAs has been working on a system to optimise how we promote Guardian content on the site, a sketch below that is apparently helping him organise his thoughts. Go Gids.

Gids' sketches to help him figure out his hack Photograph: Jonathan Hyde/The Guardian

Updated at 2.56pm GMT

1.53pm GMT

Mario Andrade is working hard on visualising an idea that Sebastien Cevey is hacking on. More updates on this when there is something to show.

Mario hard at work Photograph: Jonathan Hyde/The Guardian

1.23pm GMT

Jenny Sivapalan and Max Harlow are very pleased with themselves. Having decided what they are going to hack on, they have come up with a logo. Any guesses as to what they're doing?

Teams are breaking to grab some lunch so updates here will pause for a bit. See you after refueling.

12.23pm GMT

Demo up and running

Robert Rees has already got something up and running (impressive). If you are interested you can check it out here. It is running against our Content API and suggests new articles based on how much time you have to read them.

12.06pm GMT

If anyone reading this would like to ask a question then comments are open at the end of the page. I'll try and keen an eye out.

And we're off

The effervescent Michael Brunton-Spall has kicked us off and the office is a hive of inactivity activity. Now we can start finding out what people are doing.

9.13am GMT

Welcome

We are kicking off another Guardian Hack Day event this morning.

During the next 29 hours the developers within the Guardian will spend time working on ideas. The aim is to have some form of prototype to present back at around 3pm tomorrow. This doesn't always go to plan as our Phil Wills will testify. Sometimes showing something that doesn't work is just as useful. Honest.